---
url: /process-functions/hierarchy-hasmember.md
description: Checks whether an element exists in a hierarchy.
---

# hierarchy.hasMember

Checks whether an element exists in a hierarchy.

```js
hierarchy.hasMember(dimension, hierarchy, member)
```

## Parameters

| Parameter | Type | Description |
|---|---|---|
| `dimension` | `string` | The dimension's name or id. |
| `hierarchy` | `string` | The hierarchy's name or id. |
| `member` | `string` | The element's name. |

## Returns

`true` when the element is in the hierarchy, otherwise `false`.

## Examples

```js
if (hierarchy.hasMember("Account", "Profit and Loss", "Operating Expenditure")) {
    // do something
}
```